“We know UV light is dangerous,” Fisher says, but many people choose not to protect themselves. Fisher and his colleagues exposed mice to a moderate amount of UV light five days a week, for six weeks. The scientists shaved the mice so the light would reach their skin. The animals r...
UV light can cause thymine bases to fuse together, scrambling the DNA sequence and essentially throwing a wrench into the machinery. Since the DNA sequence is no longer correct, it can no longer replicate properly. This is how UV light annihilates viruses, by destroying their ability to reproduc...
lucky29over a year ago Recent study found that UV radiation from our eyes can be the cause of high rates of skin cancer found on our nose. Scientists found that high rates of basal cell carcinoma skin cancers on the side of the nose could be induced by UV radiation rays that are reflec...
Exposure of human (and other mammals) cells to ultraviolet (UV) light induces various deleterious responses. Damage to cells by UVA is thought to involve ROS, including singlet O2, superoxide and hydroxyl radicals, and hydrogen peroxide. Some of the major harmful effects are DNA damage, systemic...
a视频光端机 Video frequency light end machine[translate] a而国际会议需要有为其服务的是我们所要研究的 But the international conference needs to have for it serves is we must study[translate] a在中国,这是不礼貌的。 In China, this is not politeness.[translate] ...
--- Oh, I forgot to tell you, I ___the habit for there’s no secret that blue light harms our vision by damaging the eye’s retina. A. had quit B. would quit C. did quit D. have quit 免费查看参考答案及解析 题目: 80. I don’t suppose it’s right to support your kid whe...
Many environmental agents, such as UV light and tobacco smoke, cause damage to the structure of DNA, creating mutations which cause cancer to start and grow. But no evidence could be found that air pollution directly mutates DNA, so scientists looked for a different explanation. ...
Sterilizing food with suitable wavelength of ultraviolet light will not produce harmful substances, and there is no safety problem. And for some foods that want to maintain the "natural state", such as fruit juice, UV sterilization is more advantageous. ...
While photokeratitis is often called "sunburn of the eyes," it usually doesn't lead to a tumor on the cornea in the way a sunburn can increase the risk of tumors on the skin. But UV exposure can cause eyelid tumors, which is technically skin cancer, Quan said. Wearing sunglasses can ...
of diffusing bitumen oils, creating a water-soluble [...] lucobit.de lucobit.de 因为UV射线,完全暴露于阳光下能引起扩散沥青油的微量氧化, 在Lucobit屋顶和密封膜表面产生水溶褐色膜。 lucobit.de lucobit.de The ozone layer filters out ultravioletradiationfromthe sun, whichmaycauseskincancer and ...